Malicious PDF — malware analysis report

Static analysis result for SHA-256 b23d82945fb5e191…

MALICIOUS

PDF

185.6 KB Created: 2020-08-11 23:05:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 638d95a8e870d129b513327a79607edf SHA-1: 6ef93635cf4806f1d086af96e871a2bf2e8aa7c5 SHA-256: b23d82945fb5e191bf3ede974f4063c911350f81a988c64336e5967689f8044e
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing indicating a malicious redirector link. The embedded URL, 'https://ttraff.com/pify?keyword=esc+valvular+heart+disease+guidelines+pdf', is identified as a known malicious redirector. The document body, though heavily obfuscated, appears to contain text related to medical guidelines, likely serving as a lure to encourage the user to click the malicious link.

Heuristics 2

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=esc+valvular+heart+disease+guidelines+pdf
    • http://files.aslteen.com/uploads/1/3/1/6/131606755/zuvozagabevofefomax.pdf
    • http://files.matandnick.com/uploads/1/3/1/4/131407692/kikorupefufim.pdf
    • http://biridipi.printer-graphics.com/uploads/1/3/1/4/131438464/9968606.pdf
    • http://files.pbrcride.com/uploads/1/3/2/7/132740278/kepuragawabesak.pdf
    • http://files.twistedtangerine.com/uploads/1/3/2/6/132682295/a23c91fe5c23.pdf
    • https://cdn.shopify.com/s/files/1/0433/6055/1070/files/16714512632.pdf
    • https://cdn.shopify.com/s/files/1/0431/6227/1898/files/bazojizikobotatiximume.pdf
    • https://cdn.shopify.com/s/files/1/0432/5598/8374/files/83602417129.pdf
    • https://cdn.shopify.com/s/files/1/0428/2603/9463/files/43272008667.pdf
    • https://cdn.shopify.com/s/files/1/0437/1975/3879/files/blank_space_song_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0438/4745/0789/files/hybridization_of_carbon.pdf
    • https://cdn.shopify.com/s/files/1/0436/1509/2894/files/lowes._com_mylowes.pdf
    • https://cdn.shopify.com/s/files/1/0450/0973/1734/files/igor_bergler_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/1787/0239/files/13404088914.pdf
    • https://cdn.shopify.com/s/files/1/0437/7922/7805/files/62182703147.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00027e76.bin
4226a214e34f0bcd4d9696187d4e8446696f4bfa0cd6302a353f07e77c881034		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E76 5432 bytes
font_01_sfnt_off000290f4.bin
3e2a7e9822bce5d5f5a96475d8cbf4479b5d71d3244009b7d751a351f176f402		 pdf-font-stream PDF embedded font (sfnt) at offset 0x290F4 15656 bytes
font_02_sfnt_off0002c263.bin
98bbda09e34957c2c47eea570891e411fa41ced272e9777bbef021ce7395b75a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C263 16148 bytes

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